Sarykum
Sarykum or Sary-Kum (Russian: Сары-Кум, Kumyk: Sari Hum, meaning "Yellow sand") is a large sand dune located in the Kumtorkalinsky District of Dagestan, Russian Federation.[2] It is one of the largest sand dunes in Eurasia. The dune is located in a protected area, part of the Dagestan Nature Reserve, which was established on 9 January 1987.[3]